Submission #1292944

#	Time	Username	Problem	Language	Result	Execution time	Memory
1292944		dm10r7	Stove (JOI18_stove)	C++20	100 / 100	15 ms	2340 KiB

stove

#include <bits/stdc++.h>
#define int long long
using namespace std;

signed main() {
    int n, k;
    scanf("%lld %lld", &n, &k);
    
    vector<int> t(n);
    for (int i = 0; i < n; i++) {
        scanf("%lld", &t[i]);
    }
    
    int ans = t.back() - t[0] + 1;
    
    vector<int> gap;
    for (int i = 0; i < n - 1; i++) {
        gap.push_back(t[i + 1] - t[i] - 1);
    }
    
    sort(gap.rbegin(), gap.rend());
    
    for (int i = 0; i < k - 1 && i < (int)gap.size(); i++) {
        ans -= gap[i];
    }
    
    printf("%lld\n", ans);
    return 0;
}

/*
    dm10r7
*/

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%lld %lld", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~
stove.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%lld", &t[i]);
      |         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 50 / 50